Fluxon Readout of a Superconducting Qubit
Kirill G. Fedorov, Anastasia V. Shcherbakova, Michael J. Wolf, Detlef Beckmann, Alexey V. Ustinov
DOI 10.1103/PhysRevLett.112.160502 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
An experiment demonstrating a link between classical single-flux quantum digital logic and a superconducting quantum circuit is reported. We implement coupling between a moving Josephson vortex (fluxon) and a flux qubit by reading out of a state of the flux qubit through a frequency shift of the fluxon oscillations in an annular Josephson junction. The energy spectrum of the flux qubit is measured using this technique. The implemented hybrid scheme opens an opportunity to readout quantum states of superconducting qubits with the classical fluxon logic circuits.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Parametric Control of a Superconducting Flux Qubit
similarity 0.97S. Saito et al.
Source status unknown — claims are unverified
Phase coherent dynamics of a superconducting flux qubit with capacitive bias readout
similarity 0.97F. Deppe et al.
Source status unknown — claims are unverified
Spectroscopy on Two Coupled Superconducting Flux Qubits
similarity 0.97J. B. Majer et al.
Source status unknown — claims are unverified
Controllable Coupling of Superconducting Flux Qubits
similarity 0.97S. H. W. van der Ploeg et al.
Source status unknown — claims are unverified
Tunable Superconducting Flux Qubits with Long Coherence Times
similarity 0.96T. Chang et al.
Source status unknown — claims are unverified
Controlled dc Monitoring of a Superconducting Qubit
similarity 0.96A. Kringhøj et al.
Source status unknown — claims are unverified